福建中立恒自動(dòng)化設(shè)備有限公司

一、摘要 PLC是一種專門在工業(yè)環(huán)境下應(yīng)用而設(shè)計(jì)的數(shù)字運(yùn)算操作的電子裝置。

它采用可以編制程序的存儲(chǔ)器，用來(lái)在其內(nèi)部存儲(chǔ)執(zhí)行邏輯運(yùn)算、順序運(yùn)算、計(jì)時(shí)、計(jì)數(shù)和算術(shù)運(yùn)算等操作的指令，并能通過(guò)數(shù)字式或模擬式的輸入和輸出，控制各種類型的機(jī)械或生產(chǎn)過(guò)程。PLC及其有關(guān)的外圍設(shè)備都應(yīng)按照易于與工業(yè)控制系統(tǒng)形成一個(gè)整體，易于擴(kuò)展其功能的原則而設(shè)計(jì)。在工業(yè)生產(chǎn)的各個(gè)領(lǐng)域，機(jī)械加工企業(yè)為了提高生產(chǎn)效率，采用機(jī)械化流水作業(yè)的方式，對(duì)不同類型的零件分別組成的自動(dòng)生產(chǎn)線。隨著產(chǎn)品機(jī)型的更新?lián)Q代，生產(chǎn)線承擔(dān)的加工對(duì)象也隨之改變，這就需要改變控制程序，使生產(chǎn)線的機(jī)械設(shè)備按新的工藝過(guò)程運(yùn)行，而繼電接觸器控制器系統(tǒng)是采用固定接線，很難適應(yīng)這個(gè)要求。大型自動(dòng)生產(chǎn)線的控制系統(tǒng)使用的繼電器數(shù)量很多，隨著PLC的應(yīng)用日益普及,其使用方法簡(jiǎn)單,便于掌握,且可靠性,抗干擾性很強(qiáng),自身具有完善的功能.模塊化的結(jié)構(gòu),使其在工業(yè)生產(chǎn)線上的應(yīng)用越來(lái)越廣泛。

　　發(fā)展趨勢(shì)：1.向高速度、大容量方向發(fā)展

　　為了提高PLC的處理能力，要求PLC具有的響應(yīng)速度和更大的存儲(chǔ)容量。目前，有的PLC的掃描速度可達(dá)0.1ms/k步左右。PLC的掃描速度已成為很重要的一個(gè)性能指標(biāo)。

　　在存儲(chǔ)容量方面，有的PLC可達(dá)幾十兆字節(jié)。為了擴(kuò)大存儲(chǔ)容量，有的公司已使用了磁泡存儲(chǔ)器或硬盤。

　　2.向超大型、超小型兩個(gè)方向發(fā)展

　　當(dāng)前中小型PLC比較多，為了適應(yīng)市場(chǎng)的多種需要，今后PLC要向多品種方向發(fā)展，特別是向超大型和超小型兩個(gè)方向發(fā)展?，F(xiàn)已有I/O點(diǎn)數(shù)達(dá)14336點(diǎn)的超大型PLC，其使用32位微處理器，多CPU并行工作和大容量存儲(chǔ)器，功能強(qiáng)。

以下鏈接皆有貨

Parker 18-882TWTW High Pressure/Flow Diaphragm Valve, 1/2"Ports, 18 Series

Parker 1J571-12-12 Crimp Style Hydraulic Hose Fitting, 90°Elbow, ?3/4in Hose ID

Parker 1JS71-16-16 Female Seal-Lok Hydraulic Hose Fitting, 1"NPT

Parker 20000 Rotary Positioning Stage, With 4432 LinearPositioning Stage

Parker 202513 Bag Kit Strainer 2-1/2 X 3 RSF ParkerRefrigerating Specialties

Parker 2049010023 Seal Kit BGT4-600/2000S B  

Parker 20502RT-ESH1C1M1E1 Rotary Actuator, ?5" Table, 90:1, NEMA23, Zinc Plated

PARKER 20BFX16-K SF1000CX 316SS 1" MEDIUM PRESSURE BULKHEADCOUPLING SEALED

PARKER 20BFX9966-K 004294 316SS 9/16" MEDIUM PRESSURE BULKHEADCOUPLING SEALED

 Parker 20SC4082 Medium Pressure Needle Valve 20,000 PSI5/16" Tubing

Parker 2100-1-488 Indexer, Power: 117VAC 0.2A, RS-232C IEEE-488,*For Parts*

Parker 2100-1-P-488 Indexer, Power: 117VAC 0.2A, Interface:RS-232 IEEE-488

Parker 2100-2 Compumotor Indexer, Out: 3.5VDC In: 117VAC, 14.38x 8.38 x 5.22"

Parker 2100-2-488 Indexer, Power: 117VAC 0.2A, Interface:RS-232C IEEE-488

Parker 2100-2-488 Indexer, Power: 117VAC 0.2A, RS-232C IEEE-488,*For Parts*

Parker 2100-2-P Compumotor 2100 Series Indexer 117 VAC at 50 to60 Hz 0.25A

Parker 2100-4 Compumotor Indexer, 117VAC 0.2A, 25 Pin, 15 Pin, 9Pin D-Sub

Parker 21669 Racor Seal Kit Parker 21669 Racor Seal Kit

Parker 21669 Racor Seal kit Parker 21669 Seal Kit

Parker 2201AAAVC1AM Mass Flow Controller, 250 SCCM, 0-5VDC, 1/8NPT, 200psig Max

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Parker 23GS-CABLE-10 Kit SM Power & Encoder Feedback Set 10ftGemini

Parker 24S053 Clipper Oil Seal Milnor Washing Machine Seal

Parker 293-116 Air Brake Hose, ?22mm, 3.1MPa/450psi Max, 3 MeterLength

Parker 2F-NLL-BN-SS-V Metering Valve, Pressure: 1000psi, Ports:1/8" NPT

Parker 2F-PR4-VT-SS-T Stainless Rotary Plug Valve, 1/4 Turn,1/8" NPT, 3000psi

Parker-SSP Needle Toggle Valve 1/8" NPT M Inline 300PSIStainless

Parker 2NMV3 Hydraulic Directional Control Valve 3-PositionSpring Center, 24VDC

Parker 3.00NLPM92.00 Pneumatic Cylinder ?3in Bore, 2in Stroke,145PSI, 1/4in NPT

Parker 3.25 CF4MAU14A 02.00 Pneumatic Cylinder ?3-1/4" Bore, 2"Stroke, 250psi

Parker 3.25BE4MA2US14A02.00 Pneumatic Cylinder ?3-1/4" Bore, 2"Stroke, 250psi

Parker 3.25CJ4MA3U34AC16.000 Pneumatic Cylinder ?3-1/4" Bore,16" Stroke, 250psi

Parker 31014S-N / 310-3B Trilogy Ironless Linear Motor 8"w/14.4" Track, 600N

Parker 310-4A-AC-WD86-1.31037B Ironless Motor & Track, 37"Length, 790N Max

Parker 32-2020/25X15-BM Rodless Cylinder, Bore: 1.25", Stroke:15", 1/4" NPT

Parker 32AT10-HPF Toothed Timing Drive Belt, For: HPLA120 LinearActuator, 2m

Parker 3505-10 Miniature Ball Bearing Manual Slide, 1" Travel,10lb Capacity

Parker 3507-20 Miniature Ball Bearing Manual Slide, 2in Travel,14lbs Load

Parker 3510-05 Miniature Ball Bearing Manual Slide, 0.5inTravel, 17lb Load

Parker 3511-15 Miniature Ball Bearing Slide, 1.5in Travel, 18lbsNormal Load

Parker 3511-30 Ball Bearing Slide, 3" Travel, 4.56"x1.06"x0.54",43lbs Capacity

Parker 3511-40 Ball Bearing Slide, 4" Travel, 6"x1.06"x0.54",56lbs Capacity

Parker 3906 Linear Stage, With Micrometer, 1/2" Travel, 0.001"Resolution

Parker 4001 Miniature Ball Bearing Manual Linear Slide Table, 1"Travel, 25lbf

Parker 4002 Mini Ball Bearing Linear Stage Micrometer Positioner1/2" Travel

Parker 401150XRMSD9H1L1C5M3E1R1 Linear Actuator 2mm Lead, NEMA23, 150mm Stroke

Parker 402002LNMP-D1L1C1M1 Linear Actuator Leadscrew Positioner40mm Travel *Mod

Parker 402002LN-MP-D1L1C1M1 Linear Positioner Stage Table, 50mmTravel, NEMA 23

Parker 402002LN-MP-D2L1C1M1 Linear Actuator Ball Screw 50mmTravel, NEMA 23

Parker 402002LN-MP-D2L1C1M1 Screw Driven Linear Positioner, 50mmTravel 2mm Lead

Parker 402002LN-MP-D2L1C1M3 Linear Positioner, 2" Travel 2mm,1/8" Shaft NEMA17

Parker 402002LNMPD6L1C1M1 Linear Positioner, 50mm Travel, 2mmLead, NEMA 23

Parker 402002LNMP-D6L1C4M1 Linear Actuator Ballscrew Positioner50mm Travel

Parker 402002LNMS D2L2C6M1E1W1 Screw Driven Table LinearActuator, 50mm Travel

Parker 402002LNMS Linear Actuator Ball Screw 50mm Travel NEMA23, Lead: 2mm

Parker 402002LNMS Linear Actuator Ball Screw 50mm Travel, NEMA23, Lead: 2mm

Parker 402002LN-MS-D2L1C1M1 Ballscrew Linear Actuator 50mmTravel 2mm Lead

Parker 402004LN Linear Positioner Table 4" Travel 5 Turns per/in1/4" Shaft SM16

Parker 402004LNMP Linear Actuator Ballscrew Positioner, Travel:100mm, 4mm Shaft

Parker 402004LNMP-D6L1C1M1 Linear Actuator Ballscrew Positioner,100mm Travel

Parker 402004LNMPD6L1C1M1 Linear Positioner, 100mm Travel, 2mmLead, NEMA 23

Parker 402004LNMP-D6L3C6M1 Linear Actuator Ballscrew Positioner,100mm Travel

Parker 402004LNMS Linear Actuator Ballscrew Positioner, 100mmTravel, 12mm Lead

Parker 402006LNMSD3L3C1M1 Linear Positioner, 150mm Travel, 5mmLead, NEMA 23

Parker 402006LNMSD3L3C2M1 Linear Ball Bearing Positioner, 6"Travel, 5mm Lead

Parker 402100XRMSD2H3L2C2M2E1R1 Precision Linear Positioner W/Coupler, 100mm

Parker 402150XRMSD2 Linear Actuator 150mm Travel, 5mm BallscrewLead, 220lb Load

Parker 402200XRMSD2H1L1C1M37E1R1 Linear Actuator, 200mm Travel,5mm Drive Screw

Parker 402T03XESD9 Screw Driven Table Linear Actuator 175mmTravel W/ Sensor Bar

Parker 404100XRMPD2 Ball Screw Linear Positioner 100mm Travel5mm Lead NEMA 23

Parker 404100XRMPD3 Linear Stage Actuator Travel: 100mm, Lead:10mm, NEMA 17

Parker 404100XRMPD3H2L3C3M3E1B1R1P1 Linear Actuator W/ 77822-201Encoder

Parker 404100XRMPD3H3L2C3 Linear Actuator, 100mm, 10mm Lead,NEMA 23, Encoder

Parker 404100XRMSD2 Linear Actuator, 5mm Lead, 100mm Travel,375lb Load, NEMA 17

Parker 404100XRMSD2H1L1C1 Linear Actuator Positioner Stage,Travel: 100mm

Parker 404100XRMSD2H1L1C1M2 Linear Actuator, 5mm Lead, 100mmTravel, SM 16

Parker 404100XRMSD2H1L1C1M3 Linear Actuator, 100mm Travel, 5mmLead, NEMA 23

Parker 404100XRMSD2H1L1C1M3 Linear Actuator, 5mm Lead, 100mmTravel, NEMA 23

Parker 404100XRMSD2H1L1C1M8 Linear Actuator, 100mm Travel, 5mmLead, 375lb Load

Parker 404100XRMSD3 Linear Actuator Positioner Stage, 100mmTravel, 10mm Lead

Parker 404100XRMSD3H3L2 Linear Actuator Positioner Stage Table,100mm Travel

Parker 404100XRPMD3 Linear Stage Actuator Travel: 100mm, Lead:10mm, NEMA 23

Parker 404150XRMPD2 Linear Stage Actuator Travel: 150mm, Lead:5mm, NEMA 17

Parker 404150XRMS Linear Actuator, Table Travel: 150mm, Lead:5mm, NEMA 23

Parker 404150XRMSD2 Linear Actuator Ballscrew Positioner Stage150mm, NEMA 23

Parker 404150XRMSD2 Linear Actuator, 150mm Travel, 5mm Lead,375lb Load

Parker 404150XRMSD2H1L1C1M2 Linear Actuator, 150mm Travel, 5mmLead, 375lb Load